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Power Systems

Power Systems
A loss less transmission line has a length of 600 km, find the phase shift of voltage signal?

 45°
 90°
 36°
 42°

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Power Systems
For harnessing low variable water heads, the suitable hydraulic turbine with reaction and adjustable vanes runners is

 Impeller
 Francis
 Kaplan
 Pelton

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Power Systems
Specified quantities of slack bus are

 P and V
 P and δ
 V and δ
 P and Q

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Power Systems
How to find the total number of strands (N) when number of layers (x) are given

 Total number of strands N = 3x² + 3x + 1
 Total number of strands N = 3x² - 3x + 1
 Total number of strands N = 3x² + 3x - 1
 Total number of strands N = 3x² - 3x - 1

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Power Systems
A 3 layer, total diameter of an ACSR conductor is 5 cm. Find the diameter of each strand?

 5 cm
 1.5 cm
 1 cm
 15 cm

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Power Systems
Which of the following statements is/are true? Corona is reduced by

All of these
 decreasing the supply frequency
 increasing the distance between the conductor
 increasing the radius of the conductor

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